Windlass



- ran mcnts, and reserve t p gf t P OSCAR KUEHNE, OF SAN ANTONIO, TEXAS.

WINDLASS.

Specification of Letters Patent.

Patented March 9, 1909.

Application filed October 9, 1908. Serial No. 156,945.

To all whom, it may concern:

Be it known that I OSCAR Kocunn, acitizen of the United tates, residing at San Antonio, in the county of Bexar and State ol Texas, have invented a new and useful Windlass, of which the following is a specification.

This invention relates to Windlass construction, and has, as its primary object, to provide, in a Windlass, means for taking up the slack of the cable as it is wound up by the rotation of a winding spool 01' its equivalent, and to provide, in connection with such cable-storing means, a drive means therefor, so constructed and arranged as to compensate for the difference in the speed bf rotation of the said winding-spool or its equivalent, and the said cable-storin means, which means is broadly embodied m a. rot-atable drum. In the construction of ordinary hoisting mechanism of this class, no provision is made for storing the cable as it is wound by the winding-spool, it being customary for one or more workmen to pull upon the cable, as it is wound up by the spooi, and store it in a coil; and, where such a construction is not employed, it is usually customary to wind the cable directly upon adrum; but both of these arrangements are undesirable and resent disadvantages which I have aimed, y the present invent-ion, to overcome. In the first mentioned arrangement it is necessary that the workmen hold the cable taut in order to be sure of the cable frictionally gripping the winding-spool, so that this arrangement presents a certain element of danger and chance of injury to the material or machinery being hoisted In the other arrangement mentioned the power must be constantly increased as" the cable is wound upon the drum, in order to Provide for the increase in circumference o the cable coil, increase of power bein re'qgired' in ratio to the increaseginthe engt' of cable wound upon the drum; The fact" will be appreciated that the first descri arrangement overcomes the disadvantages resented by the second, and vice versa, an in carrying out my invention, 1 have the More aimed to overcome the disadvantages of both ar e advantages of 1 in i thc accompanying drawings :--Figure 31 topple view of the -wmdla ss emtion, Ifig. ;-2 is a vertical transverse sectional view therethro tion surface 23, "and s h taken in a line with the axis of the cab o storing drum. Fi 3 is a. vertical longitudinal sectional view on the line 33 of Fig. 1. Fig. 4 is a view similar to Fig. 2, but illustrating a slight modification.

As shown in the drawings, the mechanism embodied in the Windlass is mounted in a base frame and is comprised of a pair of side sills 5, cormected adjacent their ends by means of end cross-sills 6. J ournaled in suitable bearing boxes 7, which are mountedone upon each of the side sills 5, is a drive-shaft 8, upon one end of which is fixed a crank handle 9, by means of which the shaft may be rotated. This shaft 8 carries a ratchet 10 and the bearing-box 7 adjacent which the ratchet is located, has pivoted upon it a pawl 11, which cotiperates with the said ratchet to prevent backward rotation of the shaft. Bearing-boxes 12 are also fixed upon the side sills 5 of the base frame, and journaled in these latter bearing-boxes is a winding shaft 13, which carries a winding-spool 14 of ordinary construction, and has, at one end, a. gear 15, which is in mesh with :1 ar 16, fixed upon the drive-shaft 8, preferably directiy outwardly of the ratchet 10, the

r 15 is referabiy of considerably greater 'ameter 1;- nm the gear 16, so that ut little power will be required to rotate the shaft 13 through the medium of the drive shaft 8 and the tgear connections described. In addition to e journal boxes 7 and 12, are other journal boxes 17, mounted upon the side sills of the said frame, and journul'od in these latter bear -boxes is a. drum shaft 18, u on one end d i which is fixed a gear 19, whic 1 is in mesh with the car 15; 1t bein understood that rotation o the drive she 8 serves to drive both the shaft 17 and the drum shaft 18.

Looscl mounted upon the drum shaft 18 is a cab e-st-oring drum 20, which is rovided with a ratchet 21, having a paw 22 cofiperatin therewith to prevent backward rotation 0 the drum upon the shaft. It is intended that the cable-storin drum 20 be normally held for rotation wlth the drum shaft 18, uponwhich'it 1s moved and mounted, and, in order that this ma be accomplished, I have lprovided a friction clutch device which wil now bcd'cscribed.

Thecable-Btorin to, is provided iw'it an interior conicalf'ric lined upon the drum cable being from the cable-storing a 115g. frdrupi will preventits backward rotation [upon the shaft 18. Furthermore, it will be 'ihf lqfth' hoisting cable, such asisliabg shaft 18 is a frusto'conical friction clutch element 24, constructed and arran d to fit into the clutch bearing formed 1n he drum for the pur ose of clutchi the drum for rotation wit the shaft, sai element being normall held in such position and engagement with the drum through the medium of a sprin 25, which is en aged upon the shaft 18, and bears at one en a amst the said element, and at its other on a mst a collar 26, adjustable upon the shaft ongitudinally thereof by means of a hand screw 27, it bein understood that the tension of the spring .wfil be adjusted by adjusting said collar upon the shaft, so as-to hold the friction ele ment more or less firmly against the friction surface of the drum.

A hoisting cable 28 is secured at one end to the cable-storing drum, and is passed one or more times around the winding spool 14, and is connected at its other end to the weight to be lifted, in ordinary manner.

' It will be understood, from the foregoing dmcription of the invention, that, upon rotation of the power shaft 8, the winding shaft 13 will be rotated, together with the winding spool carried thereby, and that the frictional grip ing of this spool by the cable, will ret in the cable being wound to shorten its len th between the spool and the weight or loa As will be observed from the drawings, the ear connection between the winding :ggo shaft 13 and the drum shaft 18 is such t the latter shaft will be rotated at a higher rate of speed than the former, and, as a eonsquence, the cable, as it is wound up by the spool 14, will not become slack between the spool and the said drum, but will be taken 11 by the rotation of the drum and be stored ereon, the friction clutch device connecting the drum 'for rotation with the shaft serving to permit of the slack of the undue strain thereon. It will also be understood, 1n connection with the fringe description, that should the cable, by accx ent slip upon the spool 14., it will not unwind I run inasmuch as ,pawl and ratchet associated with the noted that it is not necessary, as the cable .i's' wound'by the winding spool, to increase e'.; e: but that the lid' tliatth W n t s ere is no. p ssibility of the: sli

P to"foccur',when a W111: col-is emil t s... s

digi mea s ii r bless 4 o oih th runt-25in 1 s. ide i tab iit taken up without exerting any- Htchm clues ing drum 14 with a clutch collar 29, which is normally in engagement with a similar collar 30 splined or he ed upon the shaft 13, it being understood t at the drum may be moved longitudinally of the shaft to disengage its collar 29 from the collar 30, and that after so movin the drum, it may rotate freely upon the shaft, the cable-storing drum 20 being also rotatable freely upon its shaft, butits speed being slightly retarded by the friction elements 23 and 24.

A brake-shoc 31 is pivoted as at 82 to one of the bearin s 12, and normally rests upon the shaft 13 etween the said bearings and the adjacent end of the windin drum 14, it beigg; understood that when t is drum is shift longitudinall of its shaft, to bring the collar 29 out o engagement with the collar 30, the shoe 31 is to be swung back upon its pivot, so as not to interfere with the said drum.

In the form of my invention as illustrated in Fig, 3 of the drawings, I provide, in addition to the clutch element, which is above described as being splined upon the shaft 18, a clutch element 34:, which is fixed upon said shaft in opposition to the first mentioned clutch element, the ratchet for the cable storing drum, in this form of the invention being of annular construction and encircling the said clutch element.

Havin described my invention, what- I claim an desire to secure, by Letters Patent, 1s:

1. In a Windlass, awinding spool, a cableatoning drum, and. afriction drive for said rum.

-2.- In a Windlass, a wind spool, means for taking up the slack of the cable wound by the 001, and a common drive for the spool an the said means.

3. In a Windlass, a winding- 1, a-cablestoring drum, and ar connectlonsbetwcen the s 001 and the rum arranged 'to drive the um from thespool, and to compensate forthe difierencein the speed ofrotation of the spool and drum.

4:. In a Windlass, a winding-spool, a cablestoring drum, a friction drive for said drum, and sitive means for preventing backward rotation of said drum.

5. In a windl a winding-spool,.a cablestoringl drum, a friction drive for saiddrum, a. rate 'et' carried by the drum, and a pawl positioned for cooperation with the ratchet.

6. Ina windlasavawinding-spool, a shaft, gear connections between the spool and shaft; ccable-storing dra n loosely mounted npon t e. t; and n rmal y rotation "'thr'thei" driven from the spool, a cab e-stori shaft, a friction means normally clutching the drum for rotation with the shaft, and positive means for preventing backward rotation of the drum upon the shaft.

8. In a Windlass, a windin spool, a shaft drum loosely mounted upon the shaft, sai drum hein provided with a friction surface, a friction clutch clement mounted upon the shaft, means for normally holding the said element in the friction surface of the drum for normally clutching the drum for rotation with the shaft, and means for preventiiligfltmclnvurd rotation of the drum upon the s m 9. In a Windlass, a winding-spool, a shaft, a drum loosely mounted upon the shaft, positive means for driving the shaft from the spool, and means upon said shaft for normally frictionally clutching the drum for rotation with the shaft.

10. In a Windlass, a winding-spool, a shaft driven from the spool, a drum mounted upon the shaft, said drum being provided with a friction surface, a friction clutch element n'iounted upon the shaft in opposition to the said friction surface upon the drum, a collar upon the shaft, :1 spring interposed between the collar and the said element for normally holdin 'the element in frictional engagement with the drum, means for holding the collar at various adjustments upon the shaft, and

positive means for preventi backward rotation. of the drum upon the s aft.

11. In a 'llldlflSS, a drive shaft, a ratchet upon the shaft, a pawl arranged for 006 ration with the ratchet, asecond she t, a winding spool upon the said second shaft, positive gear connections between the drive shzlftand the second mentioned shaft, a drum shaft, positive gear connections between the second mentioned shaft and the drum shaft, u cable-storing drum loosely mounted upon the drum shaft, means for normally frictionally clutching the drum for rotation with the shaft, and means for preventing backward rotation of the drum upon the shaft.

12. In a Windlass, a cable-storii drum, a shaft, 11 cable-winding drum loose y mounted upon the shaft and shiftable longitudinally thereof, the said drum being rovided with a clutch portion, a clutch col ar fixed upon the shaft and in engaeinent normally with the clutch portion 0 the drum, and means for rotating both of the drums.

In testimony that I claim the foregoing as my own, I have hereto allixed my signatnre 1n the presence of two witnesses.

OSCAR KUEHNE.

W'itnesses:

FRED Bnnoow, T. H. FLANLNERY 

